Miles between Rancho Cucamonga, CA and St George, UT

There are
346 mi
from Rancho Cucamonga, CA to St George, UT

That's the driving distance. It would take 6 hours 15 mins to go from Rancho Cucamonga, California to St George, Utah.

The flight distance (direct flight from Rancho Cucamonga, CA to St George, UT) is 305.76 mi.

346 mi = 557.11 kms